loki was only pretending to be the ss though. strange did have some of yeggdrasil's power though. sentry was doing pretty well against void, and loki shielded from void pretty easily too. still, a pretty good showing i guess for void, but they did imprison him again, and very effectively. /shrug
i agree with your overall thought though--hard to see superman putting down someone with this type of healing factor AND overall power. i wonder if supes could whistle him apart....? (only half joking....)